The slave ship S João Nepomuceno arrived with enslaved Africans in Brazil. About 400 people had been taken aboard and approximately 369 arrived.

Vessel: S João Nepomuceno; flag: Portugal / Brazil; rig: Curveta. People recorded in connection with the voyage: Captain: Álvares, Francisco; Investor: Ganzeiro, Lourenço Carvalho. The voyage began at Bahia, place unspecified. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Bahia, place unspecified. Recorded duration of the captives' Atlantic crossing: 39 days. Estimated mortality during the crossing: 8.0%.